<template>
  <div>
    <!-- 面包屑导航区 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card class="box-card">
      <!-- 搜索与添加区域 -->
      <el-row :gutter="30">
        <el-col :span="8">
          <el-input placeholder="请输入内容"
                    v-model="queryInfo.query"
                    clearable
                    @clear="getUserList">
            <el-button slot="append"
                       icon="el-icon-search"
                       @click="getUserList()"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary"
                     @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userList"
                border
                stripe>
        <el-table-column label="#"
                         type="index"></el-table-column>
        <el-table-column label="姓名"
                         prop="username"></el-table-column>
        <el-table-column label="邮箱"
                         prop="email"></el-table-column>
        <el-table-column label="电话"
                         prop="mobile"></el-table-column>
        <el-table-column label="角色"
                         prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template v-slot="scope">
            <!-- {{scope.row}} -->
            <el-switch v-model="scope.row.mg_state"
                       @change="userStateChanged(scope.row)">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作"
                         width="175px">
          <template v-slot="scope">
            <!-- 编辑按钮 -->
            <el-button type="primary"
                       icon="el-icon-edit"
                       size="mini"
                       @click="showEditDialog(scope.row.id)"></el-button>
            <!-- 删除按钮 -->
            <el-button type="danger"
                       icon="el-icon-delete"
                       size="mini"
                       @click="removeUserById(scope.row.id)"></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip content="分配角色"
                        placement="top"
                        :enterable="false">
              <el-button type="warning"
                         icon="el-icon-setting"
                         size="mini"
                         @click="assignRole(scope.row)"></el-button>
            </el-tooltip>

          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination @size-change="handleSizeChange"
                     @current-change="handleCurrentChange"
                     :current-page="queryInfo.pagenum"
                     :page-sizes="[3, 5, 10]"
                     :page-size="queryInfo.pagesize"
                     layout="total, sizes, prev, pager, next, jumper"
                     :total="total">
      </el-pagination>
    </el-card>

    <!-- 添加用户对话框 -->
    <el-dialog title="添加用户"
               :visible.sync="addDialogVisible"
               width="50%"
               @close="addDialogClose()">
      <!-- 内容主体区域 -->
      <el-form :model="addForm"
               :rules="formRules"
               ref="addFormRef"
               label-width="70px">
        <el-form-item label="用户名"
                      prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码"
                      prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱"
                      prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机"
                      prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer">
        <el-button @click="addDialogVisible=false">取 消</el-button>
        <el-button type="primary"
                   @click="addUser()">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户对话框 -->
    <el-dialog title="修改用户信息"
               :visible.sync="editDialogVisible"
               width="50%"
               @close="editDialogClose()">
      <!-- 内容主体区域 -->
      <el-form :model="editForm"
               :rules="formRules"
               ref="editFormRef"
               label-width="70px">
        <el-form-item label="用户名"
                      prop="username">
          <el-input v-model="editForm.username"
                    disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱"
                      prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机"
                      prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer">
        <el-button @click="editDialogVisible=false">取 消</el-button>
        <el-button type="primary"
                   @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色对话框 -->
    <el-dialog title="分配角色"
               :visible.sync="assignRoleDialogVisible"
               width="50%"
               @close="setRoleDialogClosed">
      <!-- 分配角色 -->
      <p>当前的用户: {{ userInfo.username }}</p>
      <p>当前的角色: {{ userInfo.role_name }}</p>
      <p>
        分配新角色:
        <el-select v-model="selectRoleId"
                   placeholder="请选择">
          <el-option v-for="item in rolesList"
                     :key="item.id"
                     :label="item.roleName"
                     :value="item.id">
          </el-option>
        </el-select>
      </p>
      <span slot="footer"
            class="dialog-footer">
        <el-button @click="assignRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary"
                   @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
import { getUserList, updateUserState, addUser, queryUserInfoById, editUserSubmit, deleteUserById } from '../../network/user';
import { assignUserRole, getRolesData } from '../../network/roles';
export default {
  name: 'Users',
  data () {
    //验证邮箱的规则
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/;
      if (regEmail.test(value)) {
        return callback();
      }
      callback(new Error('请输入合法的邮箱'));
    };

    //验证手机号的规则
    var checkMobile = (rule, value, callback) => {
      const regMobile = /^[1](([3][0-9])|([4][5-9])|([5][0-3,5-9])|([6][5,6])|([7][0-8])|([8][0-9])|([9][1,8,9]))[0-9]{8}$/;
      if (regMobile.test(value)) {
        return callback();
      }
      callback(new Error('请输入合法的手机号'));
    };

    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: '',
        pagenum: 1, //当前页数
        pagesize: 3 //当前每页显示多少条数据
      },
      userList: [],
      total: 0,
      addDialogVisible: false, //添加用户对话框显示与否
      //添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: '',
      },
      //表单的用户规则
      formRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      //控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      //查询到的用户信息对象
      editForm: {

      },
      //分配角色对话框的显示与隐藏
      assignRoleDialogVisible: false,
      //需要分配的角色用户信息
      userInfo: {},
      //角色数据列表
      rolesList: [],
      //当前选择的角色id
      selectRoleId: ''
    }
  },
  created () {
    this.getUserList();
  },
  methods: {
    async getUserList () {
      const res = await getUserList(this.queryInfo);
      //console.log(res);
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败！');
      }
      this.userList = res.data.users;
      this.total = res.data.total;

    },
    //监听pagesize改变的事件
    handleSizeChange (newSize) {
      //console.log(newSize);
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    //当前页码改变时触发
    handleCurrentChange (newPage) {
      //console.log(newPage);
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    //监听switch状态的改变
    async userStateChanged (userInfo) {
      const res = await updateUserState(userInfo.id, userInfo.mg_state);
      //console.log(res);
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state;
        return this.$message.error('更新用户状态失败');
      }
      this.$message.success('更新用户状态成功');

    },
    //对话框关闭时重置表单
    addDialogClose () {
      this.$refs.addFormRef.resetFields();
    },
    editDialogClose () {
      this.$refs.editFormRef.resetFields();
    },
    //添加用户 
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        //console.log(valid);
        if (!valid) return;
        const res = await addUser(this.addForm);
        //console.log(res);
        if (res.meta.status !== 201) {
          return this.$message.error('添加用户失败');
        }
        this.addDialogVisible = false;
        this.getUserList();
        this.$message.success('添加用户成功');
      })
    },
    //展示编辑用户的对话框
    async showEditDialog (id) {
      //console.log(id);
      this.editDialogVisible = true;
      const res = await queryUserInfoById(id);
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败');
      }
      this.editForm = res.data;
    },
    //修改用户信息并提交
    editUserInfo () {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return;
        const res = await editUserSubmit(this.editForm);
        if (res.meta.status !== 200) {
          return this.$message.error('用户更新失败');
        }
        this.editDialogVisible = false;
        this.getUserList();
        this.$message.success('更新用户成功');
      })
    },
    //删除用户
    async removeUserById (id) {
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err);
      //console.log(confirmResult);
      if (confirmResult !== 'confirm') {
        return this.$message.info('取消了修改');
      }
      //console.log('确认了修改');
      await deleteUserById(id);
      this.getUserList();
      this.$message.success('删除用户成功');
    },

    //展示分配角色对话框
    async assignRole (userInfo) {
      this.userInfo = userInfo;
      //获取所有角色的列表
      const res = await getRolesData();
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败');
      }
      this.rolesList = res.data;
      //console.log(this.rolesList);
      this.assignRoleDialogVisible = true;
    },

    // 按确定分配角色
    async saveRoleInfo () {
      if (!this.selectRoleId) {
        return this.$message.error('请选择要分配的角色');
      }
      const res = await assignUserRole(this.userInfo.id, this.selectRoleId);
      //console.log(res);
      if (res.meta.status !== 200) {
        return this.$message.error('更新用户角色失败');
      }
      this.$message.success('更新角色成功');
      this.getUserList();
      this.assignRoleDialogVisible = false;
    },

    //监听分配角色对话框的关闭
    setRoleDialogClosed () {
      this.selectRoleId = '';
      this.userInfo = {}
    }

  }
}
</script>

<style lang="less" scoped>
.el-breadcrumb {
  margin-bottom: 15px;
  font-size: 12px;
}

.el-card {
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.15) !important;

  .el-table,
  .el-pagination {
    margin-top: 20px;
  }
}
</style>
